reciprocating engine往復式動力機學術名詞往復式引擎:食品科技、電子工程、機械工程、土木工程往復式發動機:物理化學儀器設備、航空太空往復機:造船工程、海事往復引擎:造船工程往複式引擎:電機工程英文釋義an internal-combustion engine in which the crankshaft is turned by pistons moving up and down in cylinders